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(N M el.) H. K HOLSM AN 2 Sheets-Sheet '1.

' BUILDING- No. 579,875. Patented Mar. 30, 1897.

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Patented Mar. 30, 1897.

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' WITNESSES" Jim/M (3 C rrn STAT-Es HENRY K. HOLSMAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ISAAC R. MUDGE AND JESSIE R.

ONE-HALF TO MUDGE, OF SAME PLACE.

BUILDING.

SPECIFICATION forming part of Letters Patent N 0. 579,875, dated March 30, 1897. Application filed April 24,1896." Serial No. 588,908. (No model.)

To all whom it may concern.-

Be it known that I, HENRY K. HOLSMAN, a citizen of the United States, residing at Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Buildings, of which the following is a specification.

My invention relates particularly to buildin gs designed for musical conservatories, hospitals, asylums, &c., and has for its object the providing of a simple, economical, and efficient deafening structure so constructed and arranged that the noise in one room will not penetrate into or annoy persons occupying an adjacent room in the same or other buildings; and the invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view, partly in sect-ion, showing a portion of a building, taken on the line 1 of Fig. 2 and Fig. 2 is a sectional elevation taken on the line 2 of Fig. 1.

It is well known in the art to which this invention relates that the partitions which separate one apartment from another or one suite of apartments from an adjacent suite act, in a measure, as sounding-boards and are in a large measure sensitive to vibrations of sound-waves and act to transmit similar vibrations to adjoining apartments or rooms and create noise which is very disagreeable. This is especially so in buildings that are designed or used for musical purposes and also in hospitals, asylums, and similar structures where it is particularly necessary to have complete quiet and rest for the occupants and patients. My invention, therefore, is designed particularly to overcome these objections and provide a building in which there is an apartment constructed within an apartment separate and distinct from the construction of the building and making deafening walls, floors, and ceilings that will not destroy the resonance of the room, but will practically prevent sound or sound-waves from passing out of the room to seriously interfere with the quiet or rest of persons in adjoining rooms or buildings.

In illustrating and describing my improvements I have not deemed it necessary to show the architectural features of an entire building, but only to show so much of it as embodies and discloses my invention or improvements, so as to enable persons skilled in the art to make or practice the same.

In constructing a building in accordance with my improvements I make a building having dividing-walls A and ceilings and floors B B in any desired manner, so as to form compartments of the requisite size and shape. I then provide what might be termed an auxiliary or supplementary framework that forms the compartment proper, C, and which is composed of the floor D, the side walls D, and the ceiling D The floorworkis preferably laid on sleepers E, that rest upon cushioned portions 6, that destroy the vibrations of the floor and sleepers and provides a space 6 between the main and auxiliary floors. The side walls and ceilings may be constructed of compoboard or lath and plaster and are supported upon the auxiliary floor of the room, as shown in Fig. 2 of the drawings. The ceilings are then secured to these side walls and provided with girders d which may or may not be provided with cushion-pieces, as desired, though the use of these optional.

From the foregoing construction and arrangement it will be seen that the sound waves or vibrations caused by the same are interrupted to such an extent that noise is prevented from leaving one room to enter an adjoining room or apartment.

To provide windows for the admission of light, I make the jambs or frames G in two sections, one of which, g, is secured to the inner or deafening wall of the room, while the other, g, may be secured in any desired manner to the framework. Interposed between the sections of the jamb are rubber or felt cushions of non-vibratory material, that separate such sections and prevent vibrations being transmitted from one room to the other. Where a single light is used between two rooms, as shown in the left of Fig. 1, I prefer to use two panes of glass H H and separate the same by means of strips girders is entirely of cushioning or non-vibratory material 71., that break or interrupt the vibrations of one pane to prevent the other pane from vibrating in unison and thus destroy the noise. Where double windows are used, as shown in the lower portion of Fig. 1, the frames are jambs constructed in substantially the manner above described. As the air-space g between the windows is much larger there is no necessity for interposing cushioning material between the panes of glass.

In constructing the doors I prefer to make the jambs or frames in three pieces, a main portion I, that is secured to the main frame of the building, and two portions it, that are secured to opposite deafening or inner walls. Interposed between these jamb-sections are cushion-strips 2' that interrupt and destroy the sound-vibrations. The threshold K of the door is shown in Fig. 2, which connects two adjacent apartments, is formed of a strip of board or of desired material that spans a split (1, and is secured to one of the auxiliary floors. A strip of felt or other cushioning material is interposed between this threshold and the auxiliary floor, the whole being secured together by suitable nails or screws K.

In the drawings it will be noticed that I have used double doors L L, though it is evident that one door may be used and made of two parts somewhat similar to the drawings, the panel portions of which are separated by cushion strips or pieces I. The constructional or main walls all around the auxiliary frame may be covered or lined with sheathing-q'uilt or other sound-vibrating arrester. To further minimize the passage of soundwaves from one apartment to the other where gas-pipes M, steam pipes, ventilations, or other pipes enter a room, they may be fastened to the constructional main walls of the building and should not be connected to the deafening or inner auxiliary walls. Ferrules 021, formed of rubber or cushioning material, should be provided to surround the gas-pipes or such other pipes for ventilation, the, where they enter the inner walls.

\Vhile I have described my invention with more or less minuteness as regards details and as being embodied in certain precise forms, I do not desire to be limited thereto unduly no more than is pointed out in the claims. On the contrary, I contemplate all proper changes in form, construction, and arrangement, the omission of immaterial parts and the substitution of equivalents, as circumstances may suggest or render expedient.

I claim- 1. A building of the class described having main walls, floor and ceiling, an auxiliary framework forming the floor side walls and ceiling of the apartment properand supported on the main floor, and a non-vibratory support for the auxiliary framework interposed between it and the main iloor, substantially as described.

2. A building of the class described having main dividing-walls, ceilings and floor, and auxiliary framework forming the apartments proper consisting of a floor portion, sleepers supporting the same, layers of non-vibratory substance interposed between the sleeper and main floor, and side walls and ceiling supported on the auxiliary floor portion, substantially as described.

A building of the class described having main dividing-walls, floor and ceiling portions, an auxiliary framework forming the apartment proper supported on the main floor portion, a non vibratory support for the auxiliary framework, window or door jambs formed in two or more sections, one of such sections secured to the auxiliary frameworlc and an interposed piece of nonwibratorysub stance interposed between the ja-mb-sections, substantially as described.

HENRY K. IIOLSMAN.

Witnesses:

THOMAS F. SHERIDAN, TnoMAs B. llloGnneon. 

